Ruffling attachment for sewing machines



Oct. 10, 1944. A. F. DE RosE 2,360,045

- RUFFLING ATTACHMENT FOR SEWING' MACHINES v Filed April 19. 1941 4 Sheets-Sheet l ATTORNEYS C. 1U, i944. A F, DE ROSE 2,360,045

RUFFLING ATTACHMENT FOR SEWING MACHINES F'led April 19. 1941 4 Sheets-Sheet 2 ATTORNEYS 0d. 10, 1944. A F DE ROSE l 2,360,045

UFFLING ATTACHMENT FOR SEWING MACHINES Filed April 19. 1941 4 Sheets-Sheet 3 Oct. 10, 1944. A. F. DE ROSE RUFFLING ATTACHMENT FOR SEWING MACHINES A ORNEYS.

Patented Oct. 10, 1944 -f RUFFLING' ATTACHMENT- FOR-A SEWING lMACHINES Alfred F. -DeVRose, Bridgeport',' Conn.

Application-April 19, 1941, Serial No. 389,373

' 10 Claims. .-(Clz. 1-1-2--134) This'invention 'relatesto a'-`ruiflingV attachment i" for sewing machines; and` has- 'foranobject" to "provide" a ruliling attachment which maybel assembled complete asv aunit -and"'then-attached 'Fig. 2 is'arear elevationylooking f-romthe right'of'Fg. 1

Fig.V 3 is afront elevation'of a--different type "ofsewingmachine in which themaindriving as such" by a simple attaching'means tota-se -1-5 *shaftiisg-in the lower part ofthe head ofthe maing machine "without requiringi reconstructingnf the'machine, Yso that fthe* devicefmay beappl-ied complete 'by' a Vsimple operation to l"sewing-ma- 'chines already installed in a factory.

It is also an object "ofwtheinvention to-J'pro-i-lo vide such a device of a simple andrigid-constructionwhichmay be operated -indenitely at the speed'of operation offactory sewing^ma 'chines; and'v will'effe'ctively perform the` ru'iiling 'operation at these speeds.

"It 'is another object of'theinventi'on-toprovide such an attachment' with' readily operable control means soV constructed and arranged lthat the machine maybe used for straight sewing.

` andithen rwithout stoppingor` adjusting the"ma-""20f0f-Figs 6 andr';

chine the` ruiliing'device 'may be `loroughtinto loperation'for rufling aY given Ylength ofthe-seam, land then'V again it desired returning to `Vstraight Nsewihg'without stoppingfor yadjusting lthema- -Figgll is an end View looking from the left yof Figs; 6 andfl;

"jFigs."12, 13 and vl5 are'elevationalviews showllg'various modified. arrangementspof the-.oscilchinerand'"particularly-to 'provide a`--meehanism25 iating operatinglever andthe connection therefor operating thev rufer inlwhich the adjusting `means may-he shifted from as position-inv which -nomotion -is imparted to -theruiingflbladef so f that when `the rufer is not -bei-ng-used-fthe blade tionl of maximum i movement through all-'inter- .fmediate positions.

Thisxinvention is a further:v developmentfof Vthe invention of my. prior Patenti2',161,410,"'June,6,'

. 1939, and i distinguishesY from nthe; device zof. said 35 patent in several mechanical featuresgand--particularly in a construction andgarrangementin which when the ruiiier is notbeingpused nomotion isfapplied to the ruiingblade.

Withthe foregoing and other-.objectsin viewwl I-have devised` an `improved.rufiingattachment several embodiments of which for-applying to different types of -sewing machines-are-illustrated inthe accompanying drawingsY forming a -part of this specification, itA being aunderstood. however,` that I am not limitedto. the specific construction and arrangement'shown, but that various changes and modicationsmay beemployed. withinthe scope of the invention.

. In thedrawings:

Fig. 1 is aV transverse section'through'thearm of the head of a sewing machineshowing. my f improvedattachment in elevation applied there- 'toythe plane .of'` thesection being substantially yon'theline I-l of Fig. 2;

n l@I4'-,umfFigia is stationary, and may -be--adJusted---tothe' posi- 30 frorn' toV the-shaft operating the ruler blade;

and

'Fig.gl4 is adetailsection substantially on line ,Referring first to the formofthe-deviceshown .inFigs 1 and 2,-thereis-shown the vforward por- ...tion I6 Vof the head. of: a--sewingmachine-.carl riedA by the horizontal arm vIl. in Whichlis-mountedf-,the usual mechanism, notshown, for operatf .ing t. the rvertically .reciprocating needle Ahar I8 carrying the Vneedle I9 and also the-mechanism (not:Y shown) for carrying and lifting the presser `foot. -bar- 21). to which-the presser foot 2|l is at- 0-tached and cooperates-withthe usual feed, not showm'in-thegbedor plate-22. In this form my improved ruining; attachment is mounted .as an f assembled unit ori-the headof themachine and :comprises a bracketrZS having. a horizontal arm 455124 secured 'to the arm IIl. by screw 25 .threaded into the 'lifting lever hinge .screvv` in--the'side of .fthe-.arm fl'l. .It also. includes a -vertical-arm-ZS shaving a rearwardly extending portion 21 secured by ascrew128 to the head portion-fl Ii bytapping v50 it into a screw 29. The regular presserbarlifter 5- bracketvZS-*has a bearing-30 for an oscillating 32, in this case a depending arm, extending to Y a position in front of the needle and presser foot of the machine and carrying a ruiliing blade 33 pivoted to this arm at 34. A spring 35 tends to hold the free end of this blad'e down against the cloth or work passing through the guide 36 to the sewing position under the presser foot. The arm 32 is secured to the shaft 3l so as to be operated thereby. Also secured to the shaft 3l is an operating lever 3l located at any suitable position, but in this case located on the pposite side of the bracket 23 and at the opposite end of the bearing 39 from the arm 32. If desired, a collar 38 may be secured to the shaft 3l at the other end of the bearing 39 to help hold the shaft in place. For operating the shaft 3l there is located in a bearing 39 on the bracket a short shaft 40 carrying an eccentric or eccentric crank 4I, and this shaft is oscillated by a crank `arm-42 connected to the shaft by any suitable means, such as a set screw 43, and it is connected by a link 44 to the needle bar I8 by any suitable means, such as a block 45 on this bar. The link 44 is pivoted to this block at 4B and to the arm-42 at 4?. It will be evident that as the needle bar reciprocates up and down it will carry'with it the free end of the lever arm 42, as indicated by full and dotted lines in Fig. 1, to oscillate the shaft 49 and with it the ,eccentric crank'4l.

Connecting the eccentric crank 4| with the operating arm 31 is a pivoted lever 43 and a connecting link or bar 49. The lever 48 is pivoted to the bracket 23 at 59 and has a bearing at one side of this pivot embracing the eccentric crank 4l. In the present case this bearing comprises a fork. Extending laterally from the pivot 59 is a guide extending longitudinally of an arm 52 of this lever. In the present caserthis guide is an elongated curved slot 53 andit extends from a point over the pivot 50 a suflicient distance therefrom to give the maximum throw required for the ruflling blade. VThe link or bar 49 is pivotally connected'tothe operating arm 31 at 54, and at one end, as indicated at 55, is pivotally connected with the lever 48 by aconnectionwhich is adjustable along the arm 52, and in this case the slot 53, to and from a position over the pivot 50. It will be evident that as the lever 48 is oscillated about the pivot 50 oscillating motion will be imparted therefrom to the bar 49 and the operating arm 3lV to oscillate the shaft 3| and thus reciprocate the ruiiiing blade 33 back and forth. It will also be seen that the throw of the blade will depend upon the distance of the connection 55 from the pivot'50, and the construction is such that this connection 55 may be located either directly in' alignment with the pivot 50 at which time oscillation of the lever 48 willi not impart anyA motion to the bar 49 and the rufiler blade, or at a distance from this pivot. When the connection 55 is shifted away from the pivot 50 oscillating motion will be imparted to the bar 49 and theY ruling blade and the amount of, this motion, and therefore the throw of the blade will depend on the distance the connection 55 is spaced laterally from the pivot 50. p

In the arrangement shown a springv56 connected to the bar 49 tends to swing its free-end and the connection 55 toward the pivot 59 to shiftfthe device to. the inoperative position. A

foot pedal, not showngrmay'be connected by a wire or chain 51 to a lever 58 pivoted to the bracket at 59 and connected by another connection 69 to the bar 49. By pressing on the foot pedal the free end of the bar 49 and the connection 55 may be shifted along the guide slot 53 to set the ruiller in operation. Stops are provided to limit this movement to give the amount of throw desired to the ruflling blade. For this purpose there may be a stop screw 6l adjustably threaded in the bracket 23 to be engaged by the lever 58, and if desired another adjustable screw 62 may be provided to limit swinging of the lever in the opposite direction. There may also be provided another stop on the shaft 3| comprising a collar 63. This is a split collar having a clamping screw 64 so that the collar may be swung to different positions about the shaft and clamped in adjusted positions. This collar has a laterally extending arm 55 in position to be engaged by a stop 66 on the bar 49 to limit upward movement of this bar under action of the foot pedal. With the arrangement as just described, .when pressure is removed from the foot pedal the bar 49 is automatically returned to a position by the spring 56 in alignment with pivot 59 to stop operation of the ruflling blade, and then if the operator wishes to perform some rufiling operation she merely presses downwardly on the foot pedal, carrying the free end of bar 49 along the guide 53 to a position determined by either the stop 6| or 66.

In some operations, however, it may be preferred that when pressure is removed from the foot pedal the bar 49 willrbe shifted to operating position, and vwhen pressure is applied tothe foot pedal it will bel shifted tothe inoperative position, with-the connection 554 in alignment with the pivot 50. In this arrangement the connections of the foot pedal and the connection of the spring 56 are reversed. That is, the spring 56 is connected to the bar 49 on the opposite side of the pivot 54 so that it will tend to raise the connection 55, and the foot pedal is directly -connected to the bar 49 so that pressure onthe pedal will pull this bar downwardly to shift lthe connection 55 to alignment with the pivotd5. Qr if it is desired that pressure on the pedal-will merely reduce the throw of the ruflling blade, the collar 63 may be provided with an arm 91 projecting in the opposite direction from the arm4 65 and cooperating with a stop 68 on thebar 49 on the opposite side of the pivot 54. v.Theconnection 55 ymay be provided with some means, such for example as a clamping or wing nut 55a, to secure this connection in adjusted position, as where it is desired to use the machinefor continuous ruffling. operations.

The ruifler blade 33 may have' a'loop such as a wire 69 secured to this blade and under which extends the free end 10 of a rod 'Irl secured to the presserfoot or the presser foot bar at 12. With this arrangement when the presser foot is raised to insert work under the presser foot or to release work which had been under it, this operation also lifts the free end of the ruling blade from the work. to release the work from this blade so that the Work can be freely shifted as desired.

In the other forms of the device shovfn the basic mechanism and principle jof operation is the same as that of Figs. 1 and 2, but it is modified for attachment todifferent types of machines. Thus in Figs. 3 to 5 it is shown as applied to a machine 13 in which the `main operating shaft 'I4 is below the bed or, plate 37 5 at the stitchgema Ying' level'. .'[n'thisrY arrangementtthe bracket of Y ,'the'ruiiling Aattachment is indicated at "16 Asecured to the back end of the head of the machine.

,Extending from this bracket and horizontally in front of the machine is a tube 11, such'as a 'drawn brass tube, carrying the oscillating Ashaft 18v corresponding to thev shaft 3I of the first form. This tube has sleeves or bushings 19 mounted in it'forming bearings for the shaft 19, and any number desired may be employed. This permits easy aligning of the bearings for the shaft, which is a diiicult operation vWhere it is attempted to bore aligned spaced bearings in'a bracket, as the drawn tube is straight and keeps the bearings in perfect alignment. It is mounted in a'bearing 80 Vin the bracket 16'and may be secured therein by 'anysuitable means `such asa set screw 8l. If desired the 'extended free end portion may be further supported and held bya bracket or strap 82 'embracing the tube` and fastenedv to the head 'of the machine, such, for examplefas by clamping'it under the'stemA 83 ofthe oil cup 84 usually employed on this type of machine. The oseillatingshaft 18 carries the laterally extending or depending arm 35, carry- Vving'the ruifling blade 33 the same as in the'iirst form.

"If desired a depending bracket or arm 86 may be mounted on thetube I1 to which is pivoted atl 91 a rod 88 carrying aseparator plate 89 to lie under the rufer blade 33 to separate/the upper Vpiece of cloth being ruled from the lower piece of cloth which passes Yunder the plate 33 and .which is to be sewed in the seam without ruiling. VThis plate^89 may be swung to or from the position under the ruler blade by merely swinging vrthe rod 9S about its pivot. A springy washer 90 Vis preferably provided in this pivot to retainY the rodrinr different positions. It will be understood this separator blade may be provided if desired ineach of the 'other forms of device shown.

,y The mechanism for operating the shaft 18 comprises a downwardly depending operating arm `f9i1secured tothe shaft 18 and corresponding to the arm 31 of the form of Fig. 1

arm at 92 is a link or bar 93 corresponding to the Pvoted to this bar 49 'of the first form. The 'other endA of this 'bar is secured at 94 forY 'adjustment 'along'the arm 95 of the oscillating lever Q'pivoted tothe bracket 19 at 91. This pivot is on angarm '99 "extending forwardly of the bracket and'secured thereto by any suitable means such astthe screws Y99, and this arm carries a suitable bearing IIl for the pivot 91. The connection '99 is adjust- IBS.

yoke and the lever 96 to permit the head of the 'screw 99 to pass between the lever and' the yoke so that the connection 94 may be shifted to a position in direct alignment with the pivot 91. When in this position oscillation of the' lever 96 will not impart any motion to the rod 93, the shaft 13 and the ruiiler blade. It will however be apparent'that when the connection V94 is moved alongv the lever arm 95 away from the pivot 91 oscillation or" the lever 96 will impart motion to the rod 93 to reciprocate the ruffler blade, and the 'throw of the blade will depend on the distance the connection 9d is spaced from the pivot l91.

Afsp'ring IM is connected to the bar" 93 andthe support 105, and tends to shift the connection 94along the slot IGI away from the pivot 91.

The amount of this movement-may be determined by any suitable means, Such, for example, as a split collary |06 clamped to the 'shaft 18 and having a stop arm y|01 to be engaged by a stop |08 on the bar 93. The bar maybe shifted in the opposite direction by a foot pedal |09 connected to it by a chain or wire I I9. If it is desired that pressure on the pedal shall operate to shift the connection 911 from the inoperative position in alignment with the pivot 91 to an operative position, then the connection IIU may be connected to the bar 93 at III on the opposite side of the pivot 92. With this arrangement the action of the spring IM would be reversed and it Would be connected to the bar 93 in such a way as to tend to shift the connection 9d downwardly to its inoperative position in alignment with the pivot 91. If desired stop means may be provided to limit such movement such as an arm I i2 on the collar IGS cooperating with a stop H3 on the bar 93. l g

For oscillating the lever 93 it has a fork or bearing H4 embracing an eccentric or eccentric crank H5 secured to the main shaft 'I6 of the machine. This whole device may be lassembled on the bracket 19 forming a unit assembly, and then this Whole unit may be mounted as such on the machine by fastening the bracket 16 to the machine by any suitable means, such as the screws IIS either threaded into the head of the machine or other screws or elements already on the machine. A front flange II1 may be provided embracing a portion of the front surface of the machine to cooperate with the screws H9 Vto line up the bracket and hold it in position.

The eccentric H5 may be easily` mounted on the shaft 14, preferably back of the usual hand wheel and pulley I I8 which can be readily taken off the shaft to permit mounting of the eccentric and then replaced on the shaft. l

In Figs. 6 to 11 is shown an arrangement embodying the invention for attachment to the type of sewing machine in which the head includes a horizontal arm placed above vthe bed plate. It really is the same type of head as that shown in Figs. 1 and 2, but instead of driving the rufiling attachment fromthe needle bar it is driven from the main operating shaft-in the sewing machine head which operates the needle bar. 1n these iigures the overhead arm of the sewing machine head is shown at I I9 carrying the needle bar E29 and the needle I2I which is driven by mechanism, not shown, from the main shaft i22. The rufing attachment unit comprises the bracket m3 secured to the head |24 or the bed plate IISa by any suitable means. In the drawings it is shown as secured by the screws IE5 in a laterally and rearwardly extending arm |29` yof the bracket. The bracket has a bearing'l21 for mounting the bearing tube |28 for the oscillating shaft I29. This tube I29 `corresponds to the tube 'il of the form of Fig. 3 and carries'the bearing sleeves or bushings I3?) for the shaft. This shaft carries thedepending arm I3I, carrying the ruler blade 93. This shaft I29 is oscillated by a mechanism similar to that of the other formV including the operating arm I 32 secured to the shaft 129 and to whi-chis pivoted at I33 the operating link or bar 134. The free endof this bar is adjustably 'connected at |35 to the armv ISB of the oscillating lever `I3'I pivoted at I38 in thefupwardlyextendsome j'part vofthe bracketfsuch, for example, as

ing arm |39 either integral with or secured to the bracket |23. This pivot |38 is mounted on the yoke |02 welded to the lever arm |36 the same as shown in Figs. 9 and 14 and as used in the other arrangements so as to permit the head of 3 the screw connection |35 to pass to a position in alignment with the pivot |38 for the lever |31. When the connection |35 is in alignment with this pivot oscillation of the lever |31 will not impart any motion to the bar |34 and so will not as shown in Figs. 6 and '1 is secured to the pivot pin or shaft |36 on the opposite side of bearing |3811 from the arm |36.

As in the previous forms the connection |35 is adjustable along the curved slot |46 in the arm |36 of the operating lever and extending from the position of the pivot |38 laterally therefrom and longitudinally along the arm |36. It may be shifted along this slot away from the pivot |33 by a connection |4| to a foot pedal |42. This movement will be limited by a stop |43 on the b-ar |34 engaging a stop arm |44 on a split collar |45 adjustably clamped about the shaft |23. A spring |46 connected to the bar |34 may be employed to tend to shift the bar back to the inoperative position with the connection |35 in alignment with the pivot |38. If the opposite operation is desired the spring 46 may be so connected to the bar |34V as to tend to pull it downwardly and shift the connection |35 away from the pivot |38. With this arrangement the connection I4! from the Afoot pedal would be connected to the bar |44 at |41 on the opposite side of its connection |33 to the operatingrlever |32. To limit this movement under action of the pedal a stop |48 could cooperate with an arm |49 on the collar |45. The lever |31-is oscillated b-y an eccentric or eccentric crank |53 secured to the main shaft |22 of the machine by any suitable means such as the screws and located for proper timing by a pin |52 seated in the usual notch in the end of the shaft. The eccentric is embraced by a fork or other bearing |53 on the lever |31.

Figs. 12, 13 and`l5 show slightly modified arrangements for the oscillating lever. In Fig. 12 the lever is shown at |54 and its pivot at |55 adjacent one end thereof, and the longitudinal slot |56 extends from a position over this pivot longitudinally along the lever for adjustment of the connection |51 to the operating link or bar |53. The lever is oscillated by the eccentric or eccentric crank |59 secured to or operated by connection with some operative part of the sewing machine such as the main shaft or needle bar as above described. This eccentric crank is embraced by a fork or bearing |66 at the opposite end of the lever. It will be understood that in this arrangement the lever |54 corresponds to the leversI 48, 96 and |31 of the forms previously described except that the pivot is at one end instead of between the arms of the lever, and that the bar |58 corresponds to the bars 49, 93 and |34 of the forms previously described, while the connection |51 corresponds to the connections 55, 34 and |35.

Fig. 13 shows substantially the arrangement of Figs. 1 and 4, or the arrangement of Fig. 10 reversed. In this arrangement the pivot |6| for the lever |62 is intermediate the arms of the lever,

atado-i5 the arm |63 on one side carrying the bearing or fork |64 to embrace the eccentric crank |65, and the other arm |66 having the longitudinally extending curved slot extending from the pivot |6| for adjustment of the pivotal connection |51 to the bar |58, it being of course understood this lever `|62 operates the oscillating shaft carrying the rufller blade in the same manner as does the other arrangements shown, and the eccentric is driven from some operative part of the sewing machine.

Fig. 15 operates in the same manner as Fig. 13 except that one arm |58 on one side of the pivot |6| is substantially at right angles to the other arm |10 carrying the elongated slot |61.

It will be seen that in all the forms shown all the operating parts, with the exception of the eccentric or the eccentric crank in Figs. 3 to 10, are assembled on the bracket, and that this can be assembled away from the machine and applied thereto as a unit already assembled, it being necessary merely to attach the bracket to the machine and connect the operating lever with some operative part of the sewing machine, such for example as connecting the operating arm 42 for the eccentric or eccentric crank to the needle bar as in Figs. l and 2, or mounting this eccentric crank on the main shaft of the machine as shown in Figs. 4, 6 and 10. It will also be seen that unlike previous ruilling devices of which I am aware this operating lever with its connection to the oscillating shaft through the operating link or bar insures that when the ruiller is not in use it can be made absolutely stationary without disconnecting any of the parts, because it is so arranged that the adjustable connections 53, 94, |38 and |51 can each be moved to a Vposition in alignment with the pivot for the lever, and, therefore, as the lever oscillates no motion is transmitted to the rufller blade. In other forms of rufller of which I am aware the adjustment can be shifted when the ruiiler is not in use to a position where only a small movement is imparted to the rufller blade, but even this small movement when the rufller is not being used is often quite objectionable, and, therefore, one of the advantages of the present construction is the elimination of this movement.

Having thus set forth the nature of my invention what I claim is:

1. A rufiling attachment for sewing machines comprising as an assembled unit and attachable to a sewing machine as such a unit, a bracket, a shaft mounted in the bracket, a laterally extending arm secured to said shaft, a ruilling blade carried by the arm in front of the machine presser foot, an operating arm secured to the shaft, a link pivoted to the latter arm, an oscillating lever having a longitudinal guide and a supporting pivot at one end of the guide, means spaced froml the pivotal connection of the link to the arm connecting said link to the lever for adjustment along said guide by swinging the link about its pivot, an eccentric crank mounted on the bracket, a bearing for the eccentric crank arranged to oscillate said lever, an arm connected with the needle bar of the machine to turn said eccentric crank, and means for securing the bracket to the sewing machine to mount the assembly thereon.

2. A ruling attachment for sewing machines comprising a bracket, an oscillating shaft mounted in said bracket, a ruiiler blade operated by time the shaft and `carried ,bysaid bracket, an operating seo'ure'djto" said'fshaft, l`an eccentric. crank;V means for connecting saidcra'nk with anA eccentric` crank, a bar pivoted to said operatingAA arm, means space'dfrom said arm connecting said bar to said lever for adjustment thereon toward and from the pivot of the lever by swinging the bar about its connection to the operating arm to vary the throw of the blade, and means for securing said attachment to a sewing machine to locate the blade in front of the machine presser foot.

3. A ruler attachment for sewing machines comprising a bracket, an oscillating shaft mounted in the bracket/,to extend horizontally in front of a sewing machine head, an arm secured to said shaft, a ruler blade carried by said arm adjacent the machine presser foot, an operating arm secured to- Said shaft, an eccentric crank, a pivoted lever having a bearing to embrace said eccentric crank, a bar pivoted to the said operating arm and having a connection with said lever spaced from the arm and adjustable along the lever to and from the pivot of said lever by swinging the bar about its connection to the operating arm to vary the throw of the blade, an operative connection from the sewing machine to said crank to operate it, and means for securing said bracket to the sewing machine.

4. A rufling attachment for sewing machines comprising an oscillating shaft, an arm secured to said shaft, a ruiiier blade operated by said arm adjacent the sewing machine presser foot, an operating arm secured to said shaft, a pivoted lever, a bar pivotally connected to said operating arm and having a connection with said lever spaced from said latter arm and adjustable along one arm of said lever toward and from its pivot by swinging the bar about its connection to the operating arm to vary the throw of the blade, means connected to the bar for swinging it to adjust it along said lever and 4movable back and forth with the bar as the bar is shifted by the lever, means mounted on said shaft limiting swinging movements of said arm, and means connecting said lever with an operative part of the machine to oscillate said lever about its pivot.

5. A ruiing attachment for sewing machines comprising an oscillating shaft, an arm secured to said shaft, a rufer blade carried by said arm adjacent the presser foot of the sewing machine, an operating arm secured to said shaft, a pivoted lever having a guide extending longitudinally of one arm thereof in a direction away from its pivot, a bar pivoted to the said operating arm, means spaced from said operating arm connecting said bar to the lever and adjustable along said guide by swinging the bar about its connection to the operating arm to vary the throw of the ruflier blade, means to swing said bar to adjust it along the guide, stop means mounted on the shaft and movable therewith arranged to limit swinging movement of the bar, and means connecting said lever with an operative part of the sewing machine to oscillate said lever on its pivot.

6. A ruffling -attachment for sewing machines comprising an oscillating shaft, an arm secured to said shaft, a ruiller blade carried by said arm adjacent the presser foot of the sewing machine, an operating arm secured to said shaft, an eccentric crank, a pivoted lever having a bearing embracing said crank and al guide extending longitudinally of lone arm of saidlever away from its pivot,`a bar connectedto said operating arm, means'spaced from said connection connecting the bar to'said lever and adjustable along said guide to and from the pivot by swinging the bar about it's""c"o`nnection to the operating arm' to vary the4 throw of the blade, and means for connecting the crank with an operative part of the sewing machine for driving said crank.

7. A rufliing attachment for sewing machines comprising an oscillating shaft, an arm secured to said shaft, a ruiiler blade operated by said arm adjacent the sewing machine presser foot, an operating arm secured to said shaft, a pivoted lever, a bar connected to said operating arm and having a connection with said lever spaced from its connection to said arm adjustable along one arm of the lever toward and from its pivot by swinging the bar about its connection to the operating arm to vary the throw of the blade, stop means mounted on the shaft and adjustable to various positions about said shaft and cooperating with said bar to limit adjustable movement of the bar relative to the lever, and means connecting said lever with an operative part of the sewing machine to oscillate the lever about its pivot.

8. A ruifling attachment for sewing machines comprising an oscillating shaft, an arm secured to said shaft, a ruiller blade operated by said arm adjacent the sewing machine presser foot, an operating arm secured to said shaft, a pivoted lever, a bar pivoted to said operating arm and having a connection with said lever spaced from the operating arm and adjustable along an arm of the lever toward and from its pivot by swinging the bar about its connection to the operating arm to Vary the throw of the blade, stop means comprising a collar mounted on the shaft and having an arm, a stop on the bar adapted to engage the said arm of the collar to limit adjustable movement of the bar relative to the lever, said collar being adjustable about the shaft, means for securing the collar in adjusted positions, and means connecting said lever with an operative part of the sewing machine to oscillate the lever about its pivot.

9. A ruiliing attachment for sewing machines comprising as a unit assembly a bracket, a shaft carried by the bracket, a rufliing blade operated by said shaft and carried by the bracket, an operating arm secured to the shaft, a lever pivoted on the bracket, a bar connected with said arm and secured to the lever by a connection spaced from its connection to said arm and adjustable along an arm of the lever toward and from its pivot by swinging the bar about its connection to the operating arm to vary the throw of the blade, an eccentric crank carried by the bracket, said lever having a bearing embracing said crank, means for mounting the bracket on rthe head of a sewing machine with the ruilling blade in operative position adjacent the sewing machine needle, and means for connecting said eccentric crank with the needle bar of the machine tov operate said crank.

10. A rufing attachment for sewing machines comprising as a unit assembly a bracket, a tube carried by said bracket and projecting laterally therefrom to extend longitudinally in front of a sewing machine head, bearings mounted in said tube, a shaft mounted in said bearings, a rufliing blade carried by said shaft and operated thereby,l

justable along an arm of said lever toward 'and from the pivot; of the lever to vary the throw of the rufing blade, and means for securing the bracket to a sewing machine with the milling blade in operative position adjacent the sewing machine needle` ALFRED F. DE ROSE. 

